.share{
  position: fixed;
  min-width: 500px;
  min-height: 150px;
  transform: translateX(-50%,-50%);
  top: 50%;
  left: 50%;
  padding: 30px;
  margin-left: -250px;
  margin-top: -150px;
  box-shadow: 0 0 5px black;
  background-color: #292931;
}
.share > svg{
  color: #FFF;
  position: absolute;
  top: -2px;
  right: -2px;
}
.share > .btn{
  font-size: inherit;
  color:white;
  background-color: rgb(116, 54, 75);
  border: none;
  margin-left: 10px;
  border-radius: 5px;
  padding: 5px;
  box-shadow: 0px 0px 2px 1px rgb(241, 78, 133);
}
.share > .btn:hover{
  background-color: rgb(138, 72, 94);
  transition: 0.4s all;
}
.share textarea{
  word-break: break-all; 
  /* 一行满了再换行 */
  width: 100%;
  height: 6em;
  resize: none;
  /* 不能拉伸 */
  padding: 10px;
  font-size: 16px;
  color: #fff;
  border-top: 1px solid #312E3D;
  border-left: 1px solid #312E3D;
  border-right: 1px solid #312E3D;
  border-bottom: 1px solid #56536A;
  border-radius: 6px;
  background-color: rgb(116, 54, 75);
  box-shadow: 0px 0px 2px 1px rgb(241, 78, 133);
}